Patent · US Active

Silver/carbon-based material and method for producing the same for contact material

US7754280B2 · kind B2 · utility

2Cited by

11References

17Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Bernd Kempf · Alzenau, DE
Roger Wolmer · Gelnhausen, DE
Carsten Boehme · Karben, DE
Werner Roth · Lenningen, DE
Andreas Koffler · Meißen, DE

Key dates

Filing date	Aug 10, 2006
Grant date	Jul 13, 2010
Priority date	—
Expiry date	Jan 4, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2991
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a process for producing a material based on silver-carbon, that involves the steps of: (i) providing a suspension of carbon particles; and (ii) supplying a solution of a silver compound and of a reducing agent, such that a silver-containing precipitate is deposited onto the carbon particles, where the carbon particles have a mean diameter of 200 nm or greater. The invention further relates to a material obtainable by this process and to the use of the material in circuit breakers for low-voltage power engineering.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.